package com.itheima.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.itheima.domain.db.AnalysisByDay;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

public interface AnalysisByDayMapper extends BaseMapper<AnalysisByDay> {

    //统计所有的新增用户
    @Select("SELECT SUM(num_registered) FROM tb_analysis_by_day")
    Long findAllRegisterNum();


    //查询一段时间的活跃用户数
    @Select("SELECT SUM(num_active) FROM tb_analysis_by_day WHERE record_date BETWEEN #{startDate} AND #{endDate}")
    Long findActiveUserNum(@Param("startDate") String startDate, @Param("endDate") String endDate);

}